java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:23:27,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:23:27,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:23:27,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:23:27,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:23:27,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:23:27,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:23:27,381 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:23:27,384 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:23:27,384 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:23:27,385 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:23:27,386 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:23:27,388 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:23:27,389 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:23:27,392 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:23:27,394 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:23:27,401 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:23:27,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:23:27,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:23:27,405 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:23:27,406 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:23:27,407 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:23:27,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 16:23:27,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 16:23:27,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 16:23:27,412 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 16:23:27,413 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 16:23:27,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 16:23:27,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 16:23:27,419 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 16:23:27,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 16:23:27,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 16:23:27,424 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:23:27,452 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:23:27,452 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:23:27,453 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:23:27,453 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:23:27,456 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:23:27,457 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:23:27,457 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:23:27,457 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:23:27,457 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:23:27,457 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:23:27,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:23:27,458 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:23:27,458 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:23:27,458 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:23:27,458 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:23:27,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:23:27,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:23:27,459 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:23:27,459 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:23:27,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:23:27,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:23:27,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:23:27,460 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:23:27,460 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:23:27,460 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:23:27,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:23:27,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:23:27,461 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:23:27,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:23:27,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:23:27,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:23:27,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:23:27,536 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:23:27,537 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-10-24 16:23:27,610 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0954bc9bc/368f13c154ae443bb7d3d428734ea9b3/FLAGf4fd315fd [2018-10-24 16:23:28,344 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:23:28,345 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-10-24 16:23:28,384 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0954bc9bc/368f13c154ae443bb7d3d428734ea9b3/FLAGf4fd315fd [2018-10-24 16:23:28,409 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/0954bc9bc/368f13c154ae443bb7d3d428734ea9b3 [2018-10-24 16:23:28,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:23:28,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:23:28,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:23:28,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:23:28,429 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:23:28,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:23:28" (1/1) ... [2018-10-24 16:23:28,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:28, skipping insertion in model container [2018-10-24 16:23:28,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:23:28" (1/1) ... [2018-10-24 16:23:28,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:23:28,636 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:23:30,118 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:23:30,122 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:23:30,826 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:23:30,861 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:23:30,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30 WrapperNode [2018-10-24 16:23:30,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:23:30,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:23:30,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:23:30,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:23:30,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:30,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:31,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:23:31,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:23:31,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:23:31,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:23:31,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:31,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:31,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:31,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:31,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:32,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:32,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... [2018-10-24 16:23:32,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:23:32,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:23:32,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:23:32,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:23:32,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:23:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:23:32,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:23:32,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:23:44,178 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:23:44,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:23:44 BoogieIcfgContainer [2018-10-24 16:23:44,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:23:44,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:23:44,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:23:44,184 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:23:44,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:23:28" (1/3) ... [2018-10-24 16:23:44,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c8acb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:23:44, skipping insertion in model container [2018-10-24 16:23:44,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:23:30" (2/3) ... [2018-10-24 16:23:44,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c8acb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:23:44, skipping insertion in model container [2018-10-24 16:23:44,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:23:44" (3/3) ... [2018-10-24 16:23:44,188 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label38_true-unreach-call.c [2018-10-24 16:23:44,198 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:23:44,207 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:23:44,224 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:23:44,267 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:23:44,268 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:23:44,268 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:23:44,268 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:23:44,269 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:23:44,269 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:23:44,269 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:23:44,269 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:23:44,269 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:23:44,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 16:23:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-24 16:23:44,320 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:23:44,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:23:44,324 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:23:44,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:23:44,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1074201598, now seen corresponding path program 1 times [2018-10-24 16:23:44,333 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:23:44,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:23:44,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:44,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:23:44,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:23:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:23:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:23:44,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:23:44,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:23:44,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:23:44,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:23:44,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:23:44,884 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 16:24:01,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:24:01,622 INFO L93 Difference]: Finished difference Result 3866 states and 7262 transitions. [2018-10-24 16:24:01,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:24:01,624 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-24 16:24:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:24:01,670 INFO L225 Difference]: With dead ends: 3866 [2018-10-24 16:24:01,671 INFO L226 Difference]: Without dead ends: 2760 [2018-10-24 16:24:01,681 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:24:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2018-10-24 16:24:01,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2741. [2018-10-24 16:24:01,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2741 states. [2018-10-24 16:24:01,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 4467 transitions. [2018-10-24 16:24:01,834 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 4467 transitions. Word has length 60 [2018-10-24 16:24:01,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:24:01,834 INFO L481 AbstractCegarLoop]: Abstraction has 2741 states and 4467 transitions. [2018-10-24 16:24:01,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:24:01,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 4467 transitions. [2018-10-24 16:24:01,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-10-24 16:24:01,844 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:24:01,844 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:24:01,844 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:24:01,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:24:01,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1464782830, now seen corresponding path program 1 times [2018-10-24 16:24:01,845 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:24:01,845 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:24:01,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:01,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:01,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:02,596 WARN L179 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:24:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:24:02,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:24:02,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:24:02,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:24:02,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:24:02,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:24:02,879 INFO L87 Difference]: Start difference. First operand 2741 states and 4467 transitions. Second operand 5 states. [2018-10-24 16:24:03,123 WARN L179 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 16:24:16,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:24:16,633 INFO L93 Difference]: Finished difference Result 9437 states and 14864 transitions. [2018-10-24 16:24:16,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:24:16,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-10-24 16:24:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:24:16,673 INFO L225 Difference]: With dead ends: 9437 [2018-10-24 16:24:16,673 INFO L226 Difference]: Without dead ends: 6698 [2018-10-24 16:24:16,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:24:16,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6698 states. [2018-10-24 16:24:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6698 to 6697. [2018-10-24 16:24:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6697 states. [2018-10-24 16:24:16,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9386 transitions. [2018-10-24 16:24:16,843 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9386 transitions. Word has length 133 [2018-10-24 16:24:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:24:16,844 INFO L481 AbstractCegarLoop]: Abstraction has 6697 states and 9386 transitions. [2018-10-24 16:24:16,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:24:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9386 transitions. [2018-10-24 16:24:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-10-24 16:24:16,852 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:24:16,853 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:24:16,853 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:24:16,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:24:16,853 INFO L82 PathProgramCache]: Analyzing trace with hash -491007045, now seen corresponding path program 1 times [2018-10-24 16:24:16,854 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:24:16,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:24:16,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:16,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:16,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-24 16:24:17,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:24:17,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 16:24:17,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:24:17,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:24:17,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:24:17,207 INFO L87 Difference]: Start difference. First operand 6697 states and 9386 transitions. Second operand 3 states. [2018-10-24 16:24:23,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:24:23,671 INFO L93 Difference]: Finished difference Result 17338 states and 25183 transitions. [2018-10-24 16:24:23,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:24:23,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2018-10-24 16:24:23,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:24:23,723 INFO L225 Difference]: With dead ends: 17338 [2018-10-24 16:24:23,724 INFO L226 Difference]: Without dead ends: 11431 [2018-10-24 16:24:23,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:24:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2018-10-24 16:24:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 11430. [2018-10-24 16:24:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11430 states. [2018-10-24 16:24:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11430 states to 11430 states and 15069 transitions. [2018-10-24 16:24:23,939 INFO L78 Accepts]: Start accepts. Automaton has 11430 states and 15069 transitions. Word has length 244 [2018-10-24 16:24:23,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:24:23,940 INFO L481 AbstractCegarLoop]: Abstraction has 11430 states and 15069 transitions. [2018-10-24 16:24:23,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:24:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 11430 states and 15069 transitions. [2018-10-24 16:24:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-24 16:24:23,944 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:24:23,945 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:24:23,945 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:24:23,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:24:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash -294067219, now seen corresponding path program 1 times [2018-10-24 16:24:23,945 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:24:23,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:24:23,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:23,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:24:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 119 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:24:24,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:24:24,406 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:24:24,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:24:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:24:24,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:24:24,826 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:24:24,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:24:24,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 16:24:24,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:24:24,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:24:24,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:24:24,851 INFO L87 Difference]: Start difference. First operand 11430 states and 15069 transitions. Second operand 6 states. [2018-10-24 16:25:02,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:02,983 INFO L93 Difference]: Finished difference Result 64102 states and 87604 transitions. [2018-10-24 16:25:02,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 16:25:02,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 261 [2018-10-24 16:25:02,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:03,339 INFO L225 Difference]: With dead ends: 64102 [2018-10-24 16:25:03,340 INFO L226 Difference]: Without dead ends: 53462 [2018-10-24 16:25:03,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:25:03,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53462 states. [2018-10-24 16:25:04,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53462 to 53290. [2018-10-24 16:25:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53290 states. [2018-10-24 16:25:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53290 states to 53290 states and 67389 transitions. [2018-10-24 16:25:04,162 INFO L78 Accepts]: Start accepts. Automaton has 53290 states and 67389 transitions. Word has length 261 [2018-10-24 16:25:04,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:04,162 INFO L481 AbstractCegarLoop]: Abstraction has 53290 states and 67389 transitions. [2018-10-24 16:25:04,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:25:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand 53290 states and 67389 transitions. [2018-10-24 16:25:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-10-24 16:25:04,172 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:04,172 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:04,173 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:04,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:04,173 INFO L82 PathProgramCache]: Analyzing trace with hash 806633940, now seen corresponding path program 1 times [2018-10-24 16:25:04,173 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:04,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:04,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:04,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:04,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-24 16:25:04,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:04,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:25:04,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:25:04,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:25:04,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:04,473 INFO L87 Difference]: Start difference. First operand 53290 states and 67389 transitions. Second operand 4 states. [2018-10-24 16:25:15,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:15,034 INFO L93 Difference]: Finished difference Result 112854 states and 144390 transitions. [2018-10-24 16:25:15,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:25:15,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 278 [2018-10-24 16:25:15,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:15,166 INFO L225 Difference]: With dead ends: 112854 [2018-10-24 16:25:15,167 INFO L226 Difference]: Without dead ends: 60354 [2018-10-24 16:25:15,206 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60354 states. [2018-10-24 16:25:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60354 to 60352. [2018-10-24 16:25:15,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60352 states. [2018-10-24 16:25:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60352 states to 60352 states and 71537 transitions. [2018-10-24 16:25:15,921 INFO L78 Accepts]: Start accepts. Automaton has 60352 states and 71537 transitions. Word has length 278 [2018-10-24 16:25:15,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:15,922 INFO L481 AbstractCegarLoop]: Abstraction has 60352 states and 71537 transitions. [2018-10-24 16:25:15,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:25:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 60352 states and 71537 transitions. [2018-10-24 16:25:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-10-24 16:25:15,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:15,939 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:15,939 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:15,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:15,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1451551655, now seen corresponding path program 1 times [2018-10-24 16:25:15,940 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:15,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:15,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:15,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:15,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:16,439 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 16:25:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:25:16,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:16,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:25:16,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:25:16,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:25:16,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:16,649 INFO L87 Difference]: Start difference. First operand 60352 states and 71537 transitions. Second operand 4 states. [2018-10-24 16:25:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:25,866 INFO L93 Difference]: Finished difference Result 128581 states and 152727 transitions. [2018-10-24 16:25:25,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:25:25,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 353 [2018-10-24 16:25:25,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:25,959 INFO L225 Difference]: With dead ends: 128581 [2018-10-24 16:25:25,959 INFO L226 Difference]: Without dead ends: 69019 [2018-10-24 16:25:25,997 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:25:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69019 states. [2018-10-24 16:25:26,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69019 to 65859. [2018-10-24 16:25:26,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65859 states. [2018-10-24 16:25:26,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65859 states to 65859 states and 77238 transitions. [2018-10-24 16:25:26,781 INFO L78 Accepts]: Start accepts. Automaton has 65859 states and 77238 transitions. Word has length 353 [2018-10-24 16:25:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:26,782 INFO L481 AbstractCegarLoop]: Abstraction has 65859 states and 77238 transitions. [2018-10-24 16:25:26,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:25:26,782 INFO L276 IsEmpty]: Start isEmpty. Operand 65859 states and 77238 transitions. [2018-10-24 16:25:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-10-24 16:25:26,805 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:26,806 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:26,806 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:26,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:26,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1381951338, now seen corresponding path program 1 times [2018-10-24 16:25:26,807 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:26,807 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:26,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:26,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:26,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:27,475 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 16:25:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 377 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-24 16:25:27,787 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:25:27,787 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:25:27,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:27,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:25:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 16:25:28,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:25:28,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 16:25:28,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:25:28,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:25:28,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:25:28,317 INFO L87 Difference]: Start difference. First operand 65859 states and 77238 transitions. Second operand 8 states. [2018-10-24 16:25:55,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:25:55,318 INFO L93 Difference]: Finished difference Result 187680 states and 220020 transitions. [2018-10-24 16:25:55,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 16:25:55,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 414 [2018-10-24 16:25:55,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:25:55,470 INFO L225 Difference]: With dead ends: 187680 [2018-10-24 16:25:55,471 INFO L226 Difference]: Without dead ends: 109970 [2018-10-24 16:25:55,520 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 418 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-10-24 16:25:55,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109970 states. [2018-10-24 16:25:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109970 to 102068. [2018-10-24 16:25:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102068 states. [2018-10-24 16:25:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102068 states to 102068 states and 114444 transitions. [2018-10-24 16:25:56,684 INFO L78 Accepts]: Start accepts. Automaton has 102068 states and 114444 transitions. Word has length 414 [2018-10-24 16:25:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:25:56,685 INFO L481 AbstractCegarLoop]: Abstraction has 102068 states and 114444 transitions. [2018-10-24 16:25:56,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 16:25:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 102068 states and 114444 transitions. [2018-10-24 16:25:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-10-24 16:25:56,726 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:25:56,727 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:25:56,727 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:25:56,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:25:56,728 INFO L82 PathProgramCache]: Analyzing trace with hash -469366303, now seen corresponding path program 1 times [2018-10-24 16:25:56,728 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:25:56,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:25:56,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:56,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:25:56,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:25:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:25:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-10-24 16:25:57,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:25:57,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 16:25:57,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:25:57,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:25:57,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:25:57,050 INFO L87 Difference]: Start difference. First operand 102068 states and 114444 transitions. Second operand 3 states. [2018-10-24 16:26:01,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:01,801 INFO L93 Difference]: Finished difference Result 202544 states and 227148 transitions. [2018-10-24 16:26:01,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:26:01,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 527 [2018-10-24 16:26:01,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:01,917 INFO L225 Difference]: With dead ends: 202544 [2018-10-24 16:26:01,917 INFO L226 Difference]: Without dead ends: 101264 [2018-10-24 16:26:01,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:26:02,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101264 states. [2018-10-24 16:26:02,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101264 to 101264. [2018-10-24 16:26:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101264 states. [2018-10-24 16:26:03,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101264 states to 101264 states and 113471 transitions. [2018-10-24 16:26:03,066 INFO L78 Accepts]: Start accepts. Automaton has 101264 states and 113471 transitions. Word has length 527 [2018-10-24 16:26:03,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:03,066 INFO L481 AbstractCegarLoop]: Abstraction has 101264 states and 113471 transitions. [2018-10-24 16:26:03,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:26:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 101264 states and 113471 transitions. [2018-10-24 16:26:03,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2018-10-24 16:26:03,092 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:03,092 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:03,093 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:03,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:03,093 INFO L82 PathProgramCache]: Analyzing trace with hash -259507655, now seen corresponding path program 1 times [2018-10-24 16:26:03,093 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:03,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:03,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:03,094 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:03,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-10-24 16:26:03,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:26:03,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:26:03,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:26:03,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:26:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:03,607 INFO L87 Difference]: Start difference. First operand 101264 states and 113471 transitions. Second operand 4 states. [2018-10-24 16:26:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:26:14,136 INFO L93 Difference]: Finished difference Result 209654 states and 235920 transitions. [2018-10-24 16:26:14,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:26:14,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 532 [2018-10-24 16:26:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:26:14,275 INFO L225 Difference]: With dead ends: 209654 [2018-10-24 16:26:14,276 INFO L226 Difference]: Without dead ends: 109180 [2018-10-24 16:26:14,336 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:26:14,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109180 states. [2018-10-24 16:26:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109180 to 104410. [2018-10-24 16:26:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104410 states. [2018-10-24 16:26:15,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104410 states to 104410 states and 113654 transitions. [2018-10-24 16:26:15,394 INFO L78 Accepts]: Start accepts. Automaton has 104410 states and 113654 transitions. Word has length 532 [2018-10-24 16:26:15,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:26:15,395 INFO L481 AbstractCegarLoop]: Abstraction has 104410 states and 113654 transitions. [2018-10-24 16:26:15,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:26:15,395 INFO L276 IsEmpty]: Start isEmpty. Operand 104410 states and 113654 transitions. [2018-10-24 16:26:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2018-10-24 16:26:15,416 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:26:15,416 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:26:15,417 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:26:15,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:26:15,417 INFO L82 PathProgramCache]: Analyzing trace with hash -34342412, now seen corresponding path program 1 times [2018-10-24 16:26:15,417 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:26:15,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:26:15,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:15,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:15,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:26:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:16,889 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 341 proven. 100 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-24 16:26:16,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:26:16,890 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:26:16,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:26:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:26:17,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:26:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 441 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2018-10-24 16:26:17,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:26:17,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-24 16:26:17,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:26:17,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:26:17,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:26:17,302 INFO L87 Difference]: Start difference. First operand 104410 states and 113654 transitions. Second operand 7 states. [2018-10-24 16:27:01,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:01,712 INFO L93 Difference]: Finished difference Result 418658 states and 454311 transitions. [2018-10-24 16:27:01,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 16:27:01,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 541 [2018-10-24 16:27:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:02,041 INFO L225 Difference]: With dead ends: 418658 [2018-10-24 16:27:02,041 INFO L226 Difference]: Without dead ends: 294514 [2018-10-24 16:27:02,108 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 539 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-10-24 16:27:02,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294514 states. [2018-10-24 16:27:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294514 to 272339. [2018-10-24 16:27:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272339 states. [2018-10-24 16:27:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272339 states to 272339 states and 286668 transitions. [2018-10-24 16:27:05,210 INFO L78 Accepts]: Start accepts. Automaton has 272339 states and 286668 transitions. Word has length 541 [2018-10-24 16:27:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:27:05,210 INFO L481 AbstractCegarLoop]: Abstraction has 272339 states and 286668 transitions. [2018-10-24 16:27:05,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:27:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 272339 states and 286668 transitions. [2018-10-24 16:27:05,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 788 [2018-10-24 16:27:05,239 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:27:05,239 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:27:05,240 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:27:05,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:27:05,240 INFO L82 PathProgramCache]: Analyzing trace with hash -686563998, now seen corresponding path program 1 times [2018-10-24 16:27:05,240 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:27:05,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:27:05,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:05,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:27:05,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:27:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:27:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 844 backedges. 715 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-10-24 16:27:06,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:27:06,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:27:06,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:27:06,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:27:06,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:27:06,725 INFO L87 Difference]: Start difference. First operand 272339 states and 286668 transitions. Second operand 3 states. [2018-10-24 16:27:13,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:27:13,614 INFO L93 Difference]: Finished difference Result 536770 states and 564890 transitions. [2018-10-24 16:27:13,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:27:13,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 787 [2018-10-24 16:27:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:27:13,945 INFO L225 Difference]: With dead ends: 536770 [2018-10-24 16:27:13,945 INFO L226 Difference]: Without dead ends: 263643 [2018-10-24 16:27:14,085 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:27:14,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263643 states. [2018-10-24 16:27:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263643 to 255745. [2018-10-24 16:27:17,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255745 states. Received shutdown request... [2018-10-24 16:27:25,835 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:27:25,840 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:27:25,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:27:25 BoogieIcfgContainer [2018-10-24 16:27:25,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:27:25,842 INFO L168 Benchmark]: Toolchain (without parser) took 237420.20 ms. Allocated memory was 1.5 GB in the beginning and 5.2 GB in the end (delta: 3.7 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 3.8 GB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,844 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:27:25,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2437.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 803.57 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,849 INFO L168 Benchmark]: Boogie Preprocessor took 486.62 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,849 INFO L168 Benchmark]: RCFGBuilder took 12025.85 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 236.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 595.5 MB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,853 INFO L168 Benchmark]: TraceAbstraction took 221660.68 ms. Allocated memory was 2.6 GB in the beginning and 5.2 GB in the end (delta: 2.6 GB). Free memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-10-24 16:27:25,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2437.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 243.1 MB). Peak memory consumption was 243.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 803.57 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 836.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 486.62 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12025.85 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 236.5 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 29.3 MB). Peak memory consumption was 595.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221660.68 ms. Allocated memory was 2.6 GB in the beginning and 5.2 GB in the end (delta: 2.6 GB). Free memory was 2.1 GB in the beginning and 4.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while ReachableStatesComputation was computing reachable states (56953 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 221.5s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 190.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9307 SDtfs, 48462 SDslu, 3785 SDs, 0 SdLazy, 76316 SolverSat, 18816 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 154.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1285 GetRequests, 1231 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272339occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 20.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 38202 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 5346 NumberOfCodeBlocks, 5346 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5332 ConstructedInterpolants, 0 QuantifiedInterpolants, 6463713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1558 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 4612/4812 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown